DE3873112T2 - WASTEWATER TREATMENT METHOD. - Google Patents
WASTEWATER TREATMENT METHOD.Info
- Publication number
- DE3873112T2 DE3873112T2 DE19883873112 DE3873112T DE3873112T2 DE 3873112 T2 DE3873112 T2 DE 3873112T2 DE 19883873112 DE19883873112 DE 19883873112 DE 3873112 T DE3873112 T DE 3873112T DE 3873112 T2 DE3873112 T2 DE 3873112T2
- Authority
- DE
- Germany
- Prior art keywords
- treatment method
- wastewater treatment
- wastewater
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
- C02F11/08—Wet air oxidation
- C02F11/083—Wet air oxidation using deep well reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/014,330 US4765900A (en) | 1987-02-13 | 1987-02-13 | Process for the treatment of waste |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3873112D1 DE3873112D1 (en) | 1992-09-03 |
DE3873112T2 true DE3873112T2 (en) | 1992-12-03 |
Family
ID=21764828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19883873112 Expired - Fee Related DE3873112T2 (en) | 1987-02-13 | 1988-02-10 | WASTEWATER TREATMENT METHOD. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4765900A (en) |
EP (1) | EP0278745B1 (en) |
CA (1) | CA1323943C (en) |
DE (1) | DE3873112T2 (en) |
DK (1) | DK63688A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937876C2 (en) * | 1999-08-17 | 2002-11-14 | Aquatec Gmbh Inst Fuer Wassera | Process for the biological conversion of organic substances to methane gas |
Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3815271A1 (en) * | 1988-05-05 | 1989-11-16 | Sandoz Ag | METHOD FOR CLEANING INDUSTRIAL SEWAGE |
DE3901005A1 (en) * | 1989-01-14 | 1990-07-19 | Rheinische Braunkohlenw Ag | DEVICE AND METHOD FOR PURIFYING WASTE WATER |
DE3913482A1 (en) * | 1989-04-24 | 1990-10-25 | Charles Zampieri | METHOD AND DEVICE FOR TREATING SALT LAKES AND POLLUTED MINERAL SALT OR MIXTURE |
CA2104791A1 (en) * | 1991-02-27 | 1992-08-28 | Felix Steyskal | Process for separate treatment and disposal of mixtures of solid and liquid organic waste materials |
DE4120808A1 (en) * | 1991-06-24 | 1993-01-14 | Recycling Energie Abfall | REPROCESSING OF WASTE FOR ANAEROBIC PLANNING OF ORGANIC BIOGENIC COMPONENTS OF WASTE, ESPECIALLY OF BIOMUELL, WET WASTE, RESIDUAL WASTE AND COMMERCIAL WASTE |
US5190665A (en) * | 1991-08-12 | 1993-03-02 | Titmas James A | Process and apparatus for removing carbon dioxide and stripping another component from a liquid stream |
US5928403A (en) * | 1993-09-30 | 1999-07-27 | Trustees Of University Of Arkansas | Methods for decreasing non-point source pollution from poultry manure |
US5865143A (en) * | 1993-09-30 | 1999-02-02 | Trustees Of University Of Arkansas And United States Of America | High-rise laying hen rearing facility and method |
US5622697A (en) * | 1993-09-30 | 1997-04-22 | The Board Of Trustees Of The University Of Arkansas | Use of alum to inhibit ammonia volatilization and to decrease phosphorus solubility in poultry litter |
DE4400243A1 (en) * | 1994-01-07 | 1995-07-13 | Bayer Ag | Process for the wet oxidative treatment of organic pollutants in waste water |
US5551472A (en) | 1994-08-01 | 1996-09-03 | Rpc Waste Management Services, Inc. | Pressure reduction system and method |
US5755974A (en) | 1994-08-01 | 1998-05-26 | Rpc Waste Management Services, Inc. | Method and apparatus for reacting oxidizable matter with a salt |
US5620606A (en) | 1994-08-01 | 1997-04-15 | Rpc Waste Management Services, Inc. | Method and apparatus for reacting oxidizable matter with particles |
KR0142723B1 (en) * | 1995-02-17 | 1998-07-01 | 유석원 | High concentration wastewater treatment method using membrane separation |
US6017460A (en) | 1996-06-07 | 2000-01-25 | Chematur Engineering Ab | Heating and reaction system and method using recycle reactor |
US5890454A (en) * | 1997-01-21 | 1999-04-06 | Trustees Of The University Of Arkansas And The United States Of America | Swine rearing facility and method for reducing ammonia and odors therein |
US5885461A (en) * | 1997-02-07 | 1999-03-23 | Purin-Pur, Inc. | Process and system for treatment of pig and swine manure for environmental enhancement |
NL1006753C2 (en) * | 1997-08-08 | 1999-02-09 | Waterleiding Friesland Nv | Method for decolorizing liquids, in particular groundwater, using a membrane filtration unit, device for use in such a method, as well as decolorized groundwater. |
US6409788B1 (en) | 1998-01-23 | 2002-06-25 | Crystal Peak Farms | Methods for producing fertilizers and feed supplements from agricultural and industrial wastes |
EP1056691A1 (en) * | 1998-02-20 | 2000-12-06 | Bioscan A/S | Method and plant for the treatment of liquid organic waste |
JP3653392B2 (en) * | 1998-06-30 | 2005-05-25 | シャープ株式会社 | Waste water treatment method and waste water treatment equipment |
US6464875B1 (en) | 1999-04-23 | 2002-10-15 | Gold Kist, Inc. | Food, animal, vegetable and food preparation byproduct treatment apparatus and process |
EP1583602A1 (en) * | 2000-05-19 | 2005-10-12 | Purin-Pur Inc. | Method and system for treating swine manure |
EP1595551B1 (en) * | 2000-08-22 | 2009-11-18 | GFE Patent A/S | Concept for slurry separation and biogas production. |
US6508078B2 (en) | 2000-10-26 | 2003-01-21 | Crystal Peak Farms | Separation of purified water and nutrients from agricultural and farm wastes |
US6521129B1 (en) | 2001-08-24 | 2003-02-18 | Ken Stamper | Process for producing energy, feed material and fertilizer products from manure |
US7318894B2 (en) * | 2001-08-29 | 2008-01-15 | Graham John Gibson Juby | Method and system for treating wastewater |
US20030057160A1 (en) | 2001-09-26 | 2003-03-27 | Williams Derek P. | Method for treating hog and animal waste |
US20030062305A1 (en) * | 2001-09-29 | 2003-04-03 | Khudenko Boris M. | Biological processes |
AU2002348166A1 (en) * | 2001-11-16 | 2003-06-10 | Ch2M Hill, Inc. | Method and apparatus for the treatment of particulate biodegradable organic waste |
DE10205950A1 (en) * | 2002-02-12 | 2003-08-21 | 3A Abwasser Abfall | Process and device for the treatment of liquids containing ammonium, phosphate and potassium |
CA2382813C (en) * | 2002-04-22 | 2008-09-02 | Kenneth Haggerty | Process for recovery of nutrients from wastewater effluent |
US7153427B2 (en) * | 2002-07-22 | 2006-12-26 | Environmental Energy & Engineering Co. | Nitrogen recovery system and method using heated air as stripping gas |
DK1561730T3 (en) * | 2002-10-22 | 2011-06-14 | Osaka Ind Promotion Org | Process for producing methane gas |
CA2416690C (en) * | 2003-01-20 | 2008-08-12 | Alberta Research Council Inc. | Process for removal and recovery of nutrients from digested manure or other organic wastes |
WO2004087345A1 (en) * | 2003-03-31 | 2004-10-14 | Tama-Tlo, Ltd. | Method for treating organic material utilizing solid-liquid two phase circulation process |
WO2005035697A1 (en) * | 2003-10-10 | 2005-04-21 | Ecology Energy Llc | Methods and systems for dewatering and gasification |
US7591952B2 (en) * | 2003-12-23 | 2009-09-22 | Wing Yip Young | Water treatment mixture and methods and system for use |
US7198717B2 (en) * | 2004-08-26 | 2007-04-03 | Graham John Gibson Juby | Anoxic biological reduction system |
SE528840C2 (en) * | 2004-11-15 | 2007-02-27 | Chematur Eng Ab | Reactor and process for supercritical water oxidation |
SE529006C2 (en) * | 2004-11-15 | 2007-04-03 | Chematur Eng Ab | Process and system for supercritical water oxidation of a stream containing oxidizable material |
US7968057B2 (en) * | 2004-11-23 | 2011-06-28 | Estech Europe Limited | Autoclave |
US20100213123A1 (en) | 2007-01-09 | 2010-08-26 | Marston Peter G | Ballasted sequencing batch reactor system and method for treating wastewater |
US20110036771A1 (en) | 2007-01-09 | 2011-02-17 | Steven Woodard | Ballasted anaerobic system and method for treating wastewater |
AU2008205247B2 (en) | 2007-01-09 | 2010-07-01 | Evoqua Water Technologies Llc | A system and method for removing dissolved contaminants, particulate contaminants, and oil contaminants from industrial waste water |
WO2008086010A1 (en) * | 2007-01-09 | 2008-07-17 | Cambridge Water Technology, Inc. | System and method for enhancing an activated sludge process |
US8470172B2 (en) * | 2007-01-09 | 2013-06-25 | Siemens Industry, Inc. | System for enhancing a wastewater treatment process |
US7968760B2 (en) * | 2007-03-16 | 2011-06-28 | Ch2M Hill, Inc. | Treatment of particulate biodegradable organic waste by thermal hydrolysis using condensate recycle |
TWI418419B (en) * | 2007-07-13 | 2013-12-11 | Biological source waste disposal method and device | |
US7927491B2 (en) * | 2007-12-21 | 2011-04-19 | Highmark Renewables Research Limited Partnership | Integrated bio-digestion facility |
US20090193863A1 (en) * | 2008-02-05 | 2009-08-06 | The United States Of America, As Represented By The Secretary Of Agriculture | Process for Removing and Recovering Phosphorus from Animal Waste |
AR074261A1 (en) * | 2008-11-04 | 2011-01-05 | Highmark Renewables Res Ltd Partnership | INCREASED FERMENTATION OF ETHANOL USING BIODIGESTATE |
US20100297740A1 (en) * | 2009-05-21 | 2010-11-25 | Xiaomei Li | Use of Anaerobic Digestion to Destroy Biohazards and to Enhance Biogas Production |
EP2390235B1 (en) * | 2010-05-31 | 2019-08-14 | André Holzer | Method and plant for the treatment of liquid organic waste material |
US9090496B2 (en) | 2010-07-27 | 2015-07-28 | WISErg Corporation | Methods and systems for processing organic material |
IT1404148B1 (en) * | 2010-12-28 | 2013-11-15 | Simam Spa | METHOD FOR THE TREATMENT OF EXHAUSTED SLUDGE AND ITS APPARATUS |
NL2005980C2 (en) | 2011-01-10 | 2012-07-11 | Agri Separation Technologies B V | Process for treating manure. |
US10919792B2 (en) | 2012-06-11 | 2021-02-16 | Evoqua Water Technologies Llc | Treatment using fixed film processes and ballasted settling |
CA2881703C (en) | 2012-09-26 | 2020-12-22 | Evoqua Water Technologies Llc | System for measuring the concentration of magnetic ballast in a slurry |
US9090487B2 (en) * | 2012-10-26 | 2015-07-28 | Siemens Energy, Inc. | Water treatment apparatus incorporating wet air regeneration and powdered activated carbon treatment |
DE102012220810B3 (en) * | 2012-11-14 | 2014-02-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for increased phosphorus recovery from organic residues |
US9181138B2 (en) | 2013-03-12 | 2015-11-10 | WISErg Corporation | Methods and systems for stabilizing organic material |
IL234889A0 (en) * | 2014-09-29 | 2014-12-31 | Tevet Water Tech Ltd | Animal farming wastewater treatment |
CN105967490A (en) * | 2016-06-27 | 2016-09-28 | 东方电气集团东方锅炉股份有限公司 | Method and continuous system for treating wet organic waste |
CN112055697A (en) * | 2018-03-06 | 2020-12-08 | 环境工程师国际私人有限公司 | Method for remediating industrial wastewater |
FR3079228B1 (en) * | 2018-03-22 | 2022-06-10 | Suez Groupe | METHOD FOR THE SIMULTANEOUS REDUCTION OF N, P, S IN ORGANIC MATTER AND DEVICE FOR TREATMENT OF ORGANIC MATTER |
US20220112109A1 (en) * | 2019-02-12 | 2022-04-14 | Paulee Cleantec Ltd. | Organic waste treatment process |
CN112624547B (en) * | 2020-12-23 | 2021-08-24 | 江苏省环境科学研究院 | Sludge oxidation treatment system and method |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1617014A (en) * | 1922-02-07 | 1927-02-08 | Celite Company | Process for disposal of sewage |
US4076620A (en) * | 1971-11-22 | 1978-02-28 | Monsanto Research Corporation | Process for the disposal of sewage |
DE2247841C3 (en) * | 1972-09-29 | 1981-02-12 | Michigan Tech Fund, Houghton, Mich. (V.St.A.) | Process for the wet oxidation of carbonaceous waste material |
US3961078A (en) * | 1973-01-24 | 1976-06-01 | Stitt Paul A | Soluble waste conversion process and pasteurized proteinaceous products |
US4053394A (en) * | 1974-04-18 | 1977-10-11 | Pliny Fisk | Process for separating and converting waste into useable products |
US3932275A (en) * | 1974-08-29 | 1976-01-13 | Amax Resource Recovery Systems, Inc. | Process for the treatment of mineral slimes |
US3930998A (en) * | 1974-09-18 | 1976-01-06 | Sterling Drug Inc. | Wastewater treatment |
US4040953A (en) * | 1976-03-10 | 1977-08-09 | Rectech, Inc. | Anaerobic digestion process |
US4272383A (en) * | 1978-03-17 | 1981-06-09 | Mcgrew Jay Lininger | Method and apparatus for effecting subsurface, controlled, accelerated chemical reactions |
GB2018812B (en) * | 1978-04-12 | 1982-07-28 | Ystgaard O M | Treatment of waste material in the presence of water |
GB2033366A (en) * | 1978-10-12 | 1980-05-21 | Sterling Drug Inc | Process for Producing Energy from Low Grade Fuels |
GB2043045B (en) * | 1978-12-15 | 1983-02-02 | Osaka Gas Co Ltd | Process for treating ammonia-containing waste water |
US4519921A (en) * | 1983-08-11 | 1985-05-28 | Hydro Fuels, Inc. | Methods for removing pollutants from water and waste water and for reducing sludge resistance to dewatering |
-
1987
- 1987-02-13 US US07/014,330 patent/US4765900A/en not_active Expired - Lifetime
-
1988
- 1988-01-27 CA CA 557451 patent/CA1323943C/en not_active Expired - Fee Related
- 1988-02-08 DK DK63688A patent/DK63688A/en not_active Application Discontinuation
- 1988-02-10 DE DE19883873112 patent/DE3873112T2/en not_active Expired - Fee Related
- 1988-02-10 EP EP19880301110 patent/EP0278745B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937876C2 (en) * | 1999-08-17 | 2002-11-14 | Aquatec Gmbh Inst Fuer Wassera | Process for the biological conversion of organic substances to methane gas |
Also Published As
Publication number | Publication date |
---|---|
EP0278745A3 (en) | 1988-10-19 |
EP0278745B1 (en) | 1992-07-29 |
CA1323943C (en) | 1993-11-02 |
US4765900A (en) | 1988-08-23 |
DK63688D0 (en) | 1988-02-08 |
EP0278745A2 (en) | 1988-08-17 |
DE3873112D1 (en) | 1992-09-03 |
DK63688A (en) | 1988-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |